1812AC102MATME Equivalent & Substitute Parts

Part Overview

The 1812AC102MATME is a 1000 pF, 1000V (1kV) ceramic capacitor with X7R temperature coefficient in 1812 (4532 Metric) surface mount package. This KYOCERA AVX component is Active status and ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required, or when higher voltage ratings, improved tolerance specifications, or alternative temperature coefficients better suit application requirements.

Key Parameters

Parameter	Value
Capacitance	1000 pF
Tolerance	±20%
Voltage Rating	1000V (1kV)
Temperature Coefficient	X7R
Operating Temperature Range	-55°C to 125°C
Package / Case	1812 (4532 Metric)
Mounting Type	Surface Mount, MLCC
Size	0.181" L x 0.126" W (4.60mm x 3.20mm)
Thickness	0.071" (1.80mm)
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following criteria:

Primary Compatibility Criteria:

Capacitance value: 1000 pF (fixed)
Package / Case: 1812 (4532 Metric) (fixed)
Mounting Type: Surface Mount, MLCC (fixed)
Operating Temperature Range: -55°C to 125°C (fixed)
RoHS Status: ROHS3 Compliant (fixed)

Variable Parameters Allowing Substitution:

Voltage Rating: 1000V or higher
Tolerance: ±20% or tighter (±10%, ±5%)
Temperature Coefficient: X7R or C0G/NP0
Thickness: Physical dimension variation within package constraints

Substitute parts are grouped into three categories based on voltage rating and tolerance improvements:

Category 1 - Same Voltage (1000V), Improved Tolerance: 1812AC102KAT1A offers ±10% tolerance with identical voltage rating.

Category 2 - Same Voltage (1000V), Alternative Temperature Coefficient: 1812AA102MAT1A provides C0G/NP0 temperature coefficient at 1000V with ±20% tolerance.

Category 3 - Higher Voltage Ratings (1500V–3000V): 1812SC102MAT1A, 1812GC102KAT1A, 1812GC102MAT1A, 1812WC102KAT1A, and 1812HC102KAT1A provide voltage ratings from 1500V to 3000V, enabling use in higher voltage applications while maintaining 1000 pF capacitance and 1812 package compatibility.

Category 4 - KGM Series (High Voltage): KGM43ER73D102KV, KGM43ER73D102MV, and KGM43FCG3D102JV are alternative manufacturer series at 2000V with varying tolerance and temperature coefficient options.

Parameter Comparison

Part Number	Manufacturer	Capacitance	Tolerance	Voltage Rating	Temp Coeff	Package	Thickness	Inventory
1812AC102MATME	KYOCERA AVX	1000 pF	±20%	1000V	X7R	1812	0.071"	802 Pcs
1812AA102MAT1A	KYOCERA AVX	1000 pF	±20%	1000V	C0G/NP0	1812	0.087"	4242 Pcs
1812AC102KAT1A	KYOCERA AVX	1000 pF	±10%	1000V	X7R	1812	0.071"	1655 Pcs
1812SC102MAT1A	KYOCERA AVX	1000 pF	±20%	1500V	X7R	1812	0.071"	1080 Pcs
1812GC102KAT1A	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1812	0.071"	2100 Pcs
1812GC102MAT1A	KYOCERA AVX	1000 pF	±20%	2000V	X7R	1812	0.071"	14533 Pcs
1812WC102KAT1A	KYOCERA AVX	1000 pF	±10%	2500V	X7R	1812	0.110"	2778 Pcs
1812HC102KAT1A	KYOCERA AVX	1000 pF	±10%	3000V	X7R	1812	0.087"	2400 Pcs
KGM43ER73D102KV	KYOCERA AVX	1000 pF	±10%	2000V	X7R	1812	0.071"	1812 Pcs
KGM43ER73D102MV	KYOCERA AVX	1000 pF	±20%	2000V	X7R	1812	0.071"	6649 Pcs
KGM43FCG3D102JV	KYOCERA AVX	1000 pF	±5%	2000V	C0G/NP0	1812	0.087"	6987 Pcs

Engineering Selection Recommendations

All listed substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory and supply chain continuity.

For direct replacement with identical electrical specifications: 1812AC102KAT1A provides the same 1000V rating and X7R temperature coefficient with improved ±10% tolerance, maintaining 0.071" thickness and identical footprint.

For applications requiring voltage margin: 1812GC102MAT1A (2000V, ±20%) and 1812GC102KAT1A (2000V, ±10%) double the voltage rating while preserving X7R performance and 0.071" thickness. KGM43ER73D102MV and KGM43ER73D102KV offer equivalent 2000V performance in the KGM series.

For applications requiring tighter tolerance: 1812AC102KAT1A (±10%) and 1812GC102KAT1A (±10%) reduce tolerance to ±10%. KGM43FCG3D102JV achieves ±5% tolerance with C0G/NP0 temperature coefficient at 2000V.

For applications requiring C0G/NP0 temperature coefficient: 1812AA102MAT1A maintains 1000V rating with C0G/NP0 performance. KGM43FCG3D102JV provides C0G/NP0 at 2000V with ±5% tolerance.

For maximum voltage capability: 1812HC102KAT1A provides 3000V rating with ±10% tolerance and 0.087" thickness.

Frequently Asked Questions (FAQ)

Q: Can 1812AC102KAT1A replace 1812AC102MATME directly? A: Yes. Both parts share identical capacitance (1000 pF), voltage rating (1000V), temperature coefficient (X7R), package (1812), and thickness (0.071"). The substitute offers improved ±10% tolerance versus ±20%.

Q: What is the physical difference between 1812AC102MATME and 1812WC102KAT1A? A: Thickness increases from 0.071" to 0.110" due to the higher 2500V voltage rating. All other dimensions remain identical. PCB layout and clearance must accommodate the increased height.

Q: Can I use 1812GC102MAT1A in place of 1812AC102MATME? A: Yes, with design margin benefit. Both maintain 1000 pF capacitance, ±20% tolerance, X7R temperature coefficient, and 1812 package. The substitute provides 2000V rating versus 1000V, enabling use in higher voltage circuits. Thickness remains 0.071".

Q: What is the difference between X7R and C0G/NP0 temperature coefficients? A: X7R provides ±15% capacitance change across -55°C to 125°C operating range. C0G/NP0 provides ±30 ppm/°C, resulting in minimal capacitance drift. Selection depends on application sensitivity to temperature-induced capacitance variation.

Q: Are KGM series parts equivalent to standard KYOCERA AVX 1812 parts? A: KGM series represents the High Voltage product line from KYOCERA AVX. All KGM parts listed maintain identical 1812 package, mounting type, and operating temperature range. Electrical performance and compliance certifications are equivalent to standard series at matching voltage and tolerance ratings.

Q: Does thickness variation affect PCB assembly? A: Yes. Parts with 0.087" or 0.110" thickness require verification against PCB design clearances, solder reflow profiles, and component placement constraints. Standard 0.071" thickness parts present no additional assembly considerations versus the original 1812AC102MATME.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's regulatory status.

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